移动端rem适配-JS

Posted 2021-01-07 boomupupup

(function(){
    var deviceWidth = document.documentElement.clientWidth;   //设备像素宽度
    if(deviceWidth > 640){
         deviceWidth = 640;
    }
    document.documentElement.style.fontSize = deviceWidth*2 / 7.5 + ‘px‘;
})();